In this article, we are interested in finding sufficient conditions on A , B L , and id="M2"> η which ensure the normalized Coulomb wave function to be Janowski starlike. Sufficient also obtained for id="M3"> g / z ∈ <mi...

Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Let U = {z ∈ C : |z| < 1} be the unit disc in the complex plane.Let Σ k be the class of meromorphic functions f in U having the form: f (z) = 1 z + α k z k + · · · , 0 < |z| < 1, k ≥ 0 A function f ∈ Σ = Σ 0 is called starlike...

it is known that the condition $mathfrak {re} left{zf&apos;(z)/f(z)right}>0$, $|z|

In this paper, various features of a new class normalized multivalent harmonic functions in the open unit disk are analyzed, including bounds on coefficients, growth estimations, starlikeness and convexity radii. It is further demonstrated that closed when its members convoluted. can also be seen previously introduced investigated classes appear as special cases for class.